Abstract
ABSTRACT Two new species of Metacirolana from Brazil are described herein based on material collected from the continental shelf. Hitherto, only one species of the genus was known from Brazilian waters. So, this study increases the number of species from Brazil to three and the number worldwide to 39. Metacirolana helenae sp. nov. is easily differentiated from M. riobaldoi in lacking denticles on the posterodorsal margin of the pereion and pleon segments, while M. manuelae sp. nov. differs from M. helenae sp. nov. by the pleonite 1 smooth, pleotelson apex more rounded and antenna 1–2 shorter. Also, a key to Metacirolana from the Atlantic Ocean is given. https://www.zoobank.org/urn:lsid:zoobank.org:pub:DAF9F563-911C-419C-935C-A39DB35D1303 https://www.zoobank.org/urn:lsid:zoobank.org:act:7ACE11A0-FCC0-40DD-8EAF-317643475F9A https://www.zoobank.org/urn:lsid:zoobank.org:act:24F8CE29-F355-471A-B1E2-52BAF3ECFA55
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